Deception ECM signals cancellation processor with joint time-frequency pulse diversity
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منابع مشابه
Deception ECM signals cancellation processor with joint time-frequency pulse diversity
A pulse diversity-based jammer cancellation processor is designed in this paper to cancel the deception electronic counter measures (ECM) signals repeated by a digital radio frequency memory (DRFM) for radar systems. In order to remove the conventional stationary hypotheses and the rigorous application conditions, an orthogonal transmission block code set is achieved in one pulse repetition int...
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あらまし 最小平均二乗誤差(MMSE)規範に基づく周波数領域等化(FDE)とチップ間干渉(ICI)キャンセラ を直接拡散符号分割マルチアクセス(DS-CDMA)に適用すれば,理論的下界に近い優れたビット誤り率(BER) 特性を得ることができる.更なる特性改善には,送信ダイバーシチの適用が有効である.各アンテナで異なる循環 遅延を送信データブロックに与えて,それらを同時に送信する循環遅延送信ダイバーシチ(CDTD)では,等価的 なパス数を増やすことができるため,大きな周波数ダイバーシチ効果が得られる.一方,時空間符号化を行う時空 間送信ダイバーシチ(STTD)では,最大比合成によりアンテナダイバーシチ効果が得られるため,CDTD より優れ た特性が得られると言われてきた.本報告では,CDTD の特性劣化の主な原因は FDE 後の残留 ICI であることを指 摘し,ICI キャンセラを ...
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ژورنال
عنوان ژورنال: IEICE Electronics Express
سال: 2011
ISSN: 1349-2543
DOI: 10.1587/elex.8.1608